US20150274070A1 - Vehicle Interior Lighting Device - Google Patents

Vehicle Interior Lighting Device Download PDF

Info

Publication number
US20150274070A1
US20150274070A1 US14/609,943 US201514609943A US2015274070A1 US 20150274070 A1 US20150274070 A1 US 20150274070A1 US 201514609943 A US201514609943 A US 201514609943A US 2015274070 A1 US2015274070 A1 US 2015274070A1
Authority
US
United States
Prior art keywords
light
mode
emitting
emitting elements
door
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US14/609,943
Other languages
English (en)
Inventor
Hiromitsu Shiraishi
Masamitsu Nagano
Ryuji Tsuchiya
Yohei Matsuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Lighting and Technology Corp
Original Assignee
Toshiba Lighting and Technology Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2014062723A external-priority patent/JP6252985B2/ja
Priority claimed from JP2014062209A external-priority patent/JP6252984B2/ja
Priority claimed from JP2014062448A external-priority patent/JP2015182678A/ja
Priority claimed from JP2014062722A external-priority patent/JP2015182691A/ja
Application filed by Toshiba Lighting and Technology Corp filed Critical Toshiba Lighting and Technology Corp
Assigned to TOSHIBA LIGHTING & TECHNOLOGY CORPORATION reassignment TOSHIBA LIGHTING & TECHNOLOGY CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MATSUDA, YOHEI, NAGANO, MASAMITSU, SHIRAISHI, HIROMITSU, TSUCHIYA, RYUJI
Publication of US20150274070A1 publication Critical patent/US20150274070A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • B60Q3/0293—
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • B60Q3/0296—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
    • B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
    • B60Q3/64—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides for a single lighting device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/70—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose
    • B60Q3/74—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose for overall compartment lighting; for overall compartment lighting in combination with specific lighting, e.g. room lamps with reading lamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/80—Circuits; Control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/80—Circuits; Control arrangements
    • B60Q3/82—Switches specially adapted for vehicle interior lighting, e.g. switching by tilting the lens
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • H05B33/0803—
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/17—Operational modes, e.g. switching from manual to automatic mode or prohibiting specific operations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2106/00—Interior vehicle lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light

Definitions

  • Embodiments described herein relate to a vehicle interior lighting device.
  • a vehicle interior lighting device including a light-emitting diode as a light source and provided in the interior of an automobile.
  • Such a vehicle interior lighting device includes a switch for switching an ON mode for lighting the light-emitting diode, an OFF mode for extinguishing the light-emitting diode, and a DOOR mode for lighting the light-emitting diode when a door of the vehicle is in an open state and extinguishing the light-emitting diode when doors of the vehicle are in a closed state.
  • the vehicle interior lighting device distinguishes the modes according to states of an operation section of the switch.
  • FIG. 1 is a schematic view for illustrating a vehicle interior lighting device according to an embodiment
  • FIG. 2 is a schematic sectional view of the vehicle interior lighting device
  • FIG. 3 is a schematic exploded view of the vehicle interior lighting device
  • FIGS. 4A to 4C are schematic views for illustrating switching of modes
  • FIG. 5 is a schematic perspective view for illustrating an operation section according to another embodiment
  • FIG. 6A is a schematic view for illustrating a light-emitting region in an ON mode and a light-emitting region in a DOOR mode set different from each other;
  • FIG. 6B is a schematic sectional view in a B-B line direction in FIG. 6A ;
  • FIGS. 7A and 7B are schematic views for illustrating the light-emitting region in the ON mode and the light-emitting region in the DOOR mode set different from each other;
  • FIG. 8 is a schematic sectional view of a vehicle interior lighting device according to still another embodiment.
  • FIG. 9 is a schematic exploded view of the vehicle interior lighting device
  • FIGS. 10A and 10B are schematic views for illustrating disposing forms of light-emitting elements
  • FIG. 11A is a schematic view for illustrating a light-emitting region in an ON mode and a light-emitting region in a DOOR mode set different from each other;
  • FIG. 11B is a schematic sectional view in a B-B line direction in FIG. 11A ;
  • FIG. 12A is a schematic view for illustrating the light-emitting region in the ON mode and the light-emitting region in the DOOR mode set different from each other;
  • FIG. 12B is a schematic sectional view in a C-C line direction in FIG. 12A .
  • a vehicle interior lighting device including: a plurality of light-emitting elements; a switch for switching an ON mode for lighting at least a part of the plurality of light-emitting elements and a DOOR mode for lighting at least a part of the plurality of light-emitting elements when a door of a vehicle is in an open state and extinguishing the plurality of light-emitting elements when doors of the vehicle are in a closed state; and a control section configured to control light-emitting states of the plurality of light-emitting elements to set an amount of light in the DOOR mode to be more than an amount of light in the ON mode.
  • the vehicle interior lighting device it is possible to easily distinguish the ON mode and the DOOR mode and improve the safety in getting on and off the vehicle.
  • the control section can control the light-emitting states of the plurality of light-emitting elements to further set a lighting pattern in the ON mode and a lighting pattern in the DOOR mode to be different from each other.
  • the control section can control the light-emitting states of the plurality of light-emitting elements to further set a light-emitting region in the ON mode and a light-emitting region in the DOOR mode to be different from each other.
  • the transmittance of light of a first member provided in the light-emitting region in the ON mode can be set different from the transmittance of light of a second member provided in the light-emitting region in the DOOR mode.
  • the first member and the second member can be joined by a two-color molding method or fitting.
  • An end section on a light incident side of the second member can be formed to face a part of the plurality of light-emitting elements.
  • a vehicle interior lighting device including: a plurality of first light-emitting elements; a plurality of second light-emitting elements; a switch for switching an ON mode for lighting at least a part of the plurality of first light-emitting elements and the plurality of second light-emitting elements and a DOOR mode for lighting at least a part of the plurality of first light-emitting elements and the plurality of second light-emitting elements when a door of a vehicle is in an open state and extinguishing the plurality of first light-emitting elements and the plurality of second light-emitting elements when doors of the vehicle are in a closed state; and a control section configured to control light-emitting states of the plurality of first light-emitting elements and the plurality of second light-emitting elements to set at least any one of a light-emitting color, chromaticity, and color temperature in the ON mode and at least any one of a light-emitting color, chromat
  • the control section can control light-emitting states of the plurality of first light-emitting elements and the plurality of second light-emitting elements to further set a lighting pattern in the ON mode and a lighting pattern in the DOOR mode to be different from each other.
  • the control section can control light-emitting states of the plurality of first light-emitting elements and the plurality of second light-emitting elements to further set a light-emitting region in the ON mode and a light-emitting region in the DOOR mode to be different from each other.
  • the transmittance of light of a first member provided in the light-emitting region in the ON mode can be set different from the transmittance of light of a second member provided in the light-emitting region in the DOOR mode.
  • the first member and the second member can be joined by a two-color molding method or fitting.
  • An end section on a light incident side of the second member can be formed to face a part of the plurality of first light-emitting elements and the plurality of second light-emitting elements.
  • a vehicle interior lighting device including: a plurality of light-emitting elements; a switch for switching an ON mode for lighting at least a part of the plurality of light-emitting elements and a DOOR mode for lighting at least a part of the plurality of light-emitting elements when a door of a vehicle is in an open state and extinguishing the plurality of light-emitting elements when doors of the vehicle are in a closed state; and a control section configured to control light-emitting states of the plurality of light-emitting elements to set a light-emitting region in the ON mode and a light-emitting region in the DOOR mode to be different from each other.
  • the vehicle interior lighting device can further include an optical element provided in at least one of the light-emitting region in the ON mode and the light-emitting region in the DOOR mode and configured to generate a desired light condensation characteristic and a desired luminous intensity distribution characteristic.
  • the control section can control light-emitting states of the plurality of light-emitting elements to cause the plurality of light-emitting elements to irradiate light on an entire vehicle interior in the ON mode and irradiate light on at least one of the vicinities of the doors of the vehicle and the vicinities of seats in the DOOR mode.
  • the transmittance of light of a first member provided in the light-emitting region in the ON mode can be set different from the transmittance of light of a second member provided in the light-emitting region in the DOOR mode.
  • the first member and the second member can be joined by a two-color molding method or fitting.
  • An end section on a light incident side of the second member can be formed to face a part of the plurality of light-emitting elements.
  • the control section can control light-emitting states of the plurality of light-emitting elements to further set at least any one of a light-emitting color, chromaticity, color temperature, and an amount of light in the ON mode and at least any one of a light-emitting color, chromaticity, color temperature, and an amount of light in the DOOR mode to be different from each other.
  • the control section can control light-emitting states of the plurality of light-emitting elements to further set a lighting pattern in the ON mode and a lighting pattern in the DOOR mode to be different from each other.
  • FIG. 1 is a schematic perspective view for illustrating a vehicle interior lighting device 1 according to an embodiment.
  • FIG. 2 is a schematic sectional view of the vehicle interior lighting device 1 .
  • FIG. 2 is a schematic sectional view in an A-A line direction in FIG. 1 .
  • FIG. 3 is a schematic exploded view of the vehicle interior lighting device 1 .
  • FIGS. 4A to 4C are schematic views for illustrating switching of modes.
  • the vehicle interior lighting device 1 can be provided in, for example, an opening provided on a ceiling surface, a sidewall surface, or the like of the interior of an automobile.
  • the vehicle interior lighting device 1 includes a housing 2 , a light-emitting section 3 , a frame 4 , an operation section 5 , and a cover 6 .
  • the housing 2 assumes a box shape. One end section 2 a of the housing 2 is opened. At the end section 2 a of the housing 2 , a flange section 2 b projecting toward the outside of the housing 2 is provided. The flange section 2 b assumes an annular shape and is provided to surround the end section 2 a of the housing 2 .
  • the light-emitting section 3 is provided on a bottom surface 2 c on the inside of the housing 2 .
  • a side surface 2 d on the inside of the housing 2 is formed as a slope.
  • the side surface 2 d inclines in a direction in which the bottom surface 2 c side of the side surface 2 d approaches the center side of the housing 2 .
  • a part of light irradiated from a light-emitting element 3 b is made incident on the side surface 2 d.
  • the light made incident on the side surface 2 d is reflected and irradiated to the outside of the vehicle interior lighting device 1 via the cover 6 (see FIG. 2 ).
  • the side surface 2 d is a surface perpendicular to the bottom surface 2 c, a part of the light made incident on the side surface 2 d is less easily irradiated to the outside of the vehicle interior lighting device 1 .
  • the side surface 2 d inclines in the direction in which the bottom surface 2 c side of the side surface 2 d approaches the center side of the housing 2 . Therefore, the light made incident on the side surface 2 d is easily irradiated to the outside of the vehicle interior lighting device 1 .
  • the material of the housing 2 is not particularly limited.
  • the housing 2 can be formed using, for example, a resin material or a metal material.
  • the material of the housing 2 is preferably a material having high reflectance to the light irradiated from the light-emitting element 3 b.
  • Examples of the material having high reflectance include white resin and resin mixed with particles of titanium oxide or the like.
  • the material of the housing 2 is preferably a material having high heat conductivity.
  • Examples of the material having high heat conductivity include high heat conductivity resin, metal, and ceramics such as aluminum oxide and aluminum nitride.
  • the high heat conductivity resin is resin obtained by mixing fibers or particles made of carbon, aluminum oxide, or the like having high heat conductivity in resin of, for example, PET (Polyethyleneterephthalate) or nylon.
  • the light-emitting section 3 includes a substrate 3 a, a light-emitting element 3 b, a switch 3 c, and a control section 3 d.
  • the substrate 3 a assumes a tabular shape.
  • a not-shown wiring pattern is provided on the surface of the substrate 3 a.
  • the substrate 3 a can be formed of, for example, ceramics such as aluminum oxide or aluminum nitride, an organic material such as paper phenol or glass epoxy, or a metal plate, the surface of which is coated with an insulating material.
  • the insulating material may be made of an organic material or may be made of an inorganic material
  • the substrate 3 a When a heat value of the light-emitting element 3 b or the like is large, it is preferable to form the substrate 3 a using a material having high heat conductivity from the viewpoint of thermal radiation.
  • the material having high heat conductivity include ceramics such as aluminum oxide and aluminum nitride, the high heat conductivity resin, and a metal plate, the surface of which is coated with an insulator.
  • the substrate 3 a may be a single layer or a multilayer.
  • One end of a not-shown power-supply terminal is connected to the not-shown wiring pattern of the substrate 3 a .
  • the other end of the not-shown power-supply terminal is exposed from the housing 2 .
  • An external power supply or the like is connected to the not-shown power-supply terminal exposed from the housing 2 via a not-shown socket or the like.
  • a plurality of the light-emitting elements 3 b are provided on the substrate 3 a.
  • the light-emitting elements 3 b can be, for example, light-emitting diodes or laser diodes.
  • the number of the light-emitting elements 3 b is not particularly limited.
  • the number of the light-emitting elements 3 b can be changed as appropriate according to the use, the size, and the like of the vehicle interior lighting device 1 . That is, the number of the light-emitting elements 3 b only has to be two or more.
  • the arrangement of the plurality of light-emitting elements 3 b may be regular arrangement such as a matrix shape or a concentric circle shape or may be any arrangement.
  • a connection method for the light-emitting elements 3 b and the not-shown wiring pattern provided on the surface of the substrate 3 a is not particularly limited.
  • the light-emitting elements 3 b can be electrically connected to the not-shown wiring pattern via a wire.
  • the light-emitting elements 3 b may be mounted by COB (Chip On Board) directly connected to the not-shown wiring pattern.
  • the light-emitting elements 3 b can be directly provided on the substrate 3 a or can be provided on the substrate 3 a via an envelope like, for example, a PLCC (Plastic Leaded Chip Carrier) type.
  • PLCC Poly Leaded Chip Carrier
  • annular reflectors surrounding the light-emitting elements 3 b can be provided, the light-emitting elements 3 b can be sealed by resin, or phosphors can be included in the resin for sealing the light-emitting element 3 b.
  • the switch 3 c is provided on the substrate 3 a .
  • the switch 3 c is electrically connected to the not-shown wiring pattern provided on the surface of the substrate 3 a.
  • the switch 3 c can be, for example, a slide switch.
  • a knob 3 c 1 provided in the switch 3 c is slid to the left and right via the operation section 5 , whereby an ON mode, an OFF mode, and a DOOR mode can be switched.
  • the operation section 5 is slid to the left side to switch the vehicle interior lighting device 1 to the ON mode.
  • the operation section 5 is slid to the center to switch the vehicle interior lighting device 1 to the DOOR mode.
  • the operation section 5 is slid to the right side to switch the vehicle interior lighting device 1 to the OFF mode.
  • the ON mode is a mode for lighting at least a part of the plurality of light-emitting elements 3 b.
  • the OFF mode is a mode for extinguishing the plurality of light-emitting elements 3 b.
  • the DOOR mode is a mode for lighting at least a part of the plurality of light-emitting elements 3 b when a door of a vehicle is in an open state and extinguishing the plurality of light-emitting elements 3 b when doors of the vehicle are in a closed state.
  • the control section 3 d is provided on the substrate 3 a .
  • the control section 3 d controls light-emitting states of the plurality of light-emitting elements 3 b to set an amount of light in the DOOR mode to be more than an amount of light in the ON mode.
  • the control section 3 d can also control the light-emitting states of the plurality of light-emitting elements 3 b to set a lighting pattern in the ON mode and a lighting pattern in the DOOR mode to be different from each other.
  • the control section 3 d can also control the light-emitting states of the plurality of light-emitting elements 3 b to set a light-emitting region in the ON mode and a light-emitting region in the DOOR mode to be different from each other.
  • the control section 3 d can also control the light-emitting states of the plurality of light-emitting elements 3 b to set at least any one of a light-emitting color, chromaticity, color temperature, and an amount of light in the ON mode and at least any one of a light-emitting color, chromaticity, color temperature, and an amount of light in the DOOR mode to be different from each other.
  • the control section 3 d controls the light-emitting states of the plurality of light-emitting elements 3 b to set an amount of light obtained when the doors of the vehicle are in the closed state in the DOOR mode to be equal to or less than a half, one fifth, one tenth, or one hundredth of an amount of light obtained when a door of the vehicle is in the open state.
  • the control section 3 d can also set the amount of light obtained when the doors of the vehicle are in the closed state in the DOOR mode to be equal to or less than a half, one fifth, one tenth, or one hundredth of an amount of light in the ON mode
  • the control section 3 d can be a control circuit including circuit components such as a resistor, a capacitor, and an integrated circuit or can be a control section including an arithmetic element and a storage element and configured to cause the arithmetic element to operate with software stored in the storage element.
  • control section 3 d Note that details of the control section 3 d are explained below.
  • the frame 4 is provided on the end section 2 a side (an opening side) of the housing 2 .
  • the frame 4 includes an edge section 4 a and a retaining section 4 b.
  • the edge section 4 a assumes a frame shape.
  • a claw section 4 a 1 is provided in the edge section 4 a .
  • the distal end of the claw section 4 a 1 projects toward the center side of the frame 4 to make it possible to retain the flange section 2 b of the housing 2 .
  • the frame 4 is fixed to the end section 2 a side of the housing 2 by the claw section 4 a 1 (see FIG. 2 ).
  • One end of the retaining section 4 b is provided in the edge section 4 a .
  • the other end of the retaining section 4 b projects toward the center side of the frame 4 .
  • a hole section 4 b 1 for attaching the operation section 5 is provided in the retaining section 4 b .
  • the hole section 4 b 1 has a shape extending in a predetermined direction.
  • a not-shown guide section is provided on the inside of the hole section 4 b 1 to make it possible to retain the operation section 5 and slide the operation section 5 along the hole section 4 b 1 .
  • the edge section 4 a is provided under the cover 6 . Therefore, the area of the cover 6 , which is an irradiation surface of light, can be increased in size.
  • the retaining section 4 b is exposed from the cover 6 . Therefore, by changing the color, the shape, and the like of the retaining section 4 b , it is easy to obtain optimum design of the vehicle interior lighting device 1 for each of a plurality of kinds of design of interior materials in the vehicle interior.
  • the housing 2 from a material having high light reflectivity or a material having high heat conductivity and, attaching importance to a design property, form the frame 4 , which includes the retaining section 4 b exposed from the cover 6 , from various materials.
  • the material of the frame 4 can be selected from various materials such as a metal material, a resin material, and ceramics.
  • the operation section 5 is provided on the inside of the hole section 4 b 1 .
  • One end of the operation section 5 projects from the retaining section 4 b .
  • a not-shown recessed section is provided at the other end of the operation section 5 .
  • the knob 3 c 1 of the switch 3 c is inserted into the not-shown recessed section. Therefore, by sliding the operation section 5 , it is possible to slide the knob 3 c 1 of the switch 3 c.
  • the operation section 5 is retained by the retaining section 4 b . Therefore, it is possible to suppress force applied to the operation section 5 from being transmitted to the switch 3 c . As a result, it is possible to suppress breakage of the switch 3 c.
  • the material of the operation section 5 is not particularly limited.
  • various materials such as a metal material, a resin material, and ceramics can be used.
  • a slide switch is adopted as the switch 3 c to slide the operation section 5 .
  • the switch 3 c and the operation section 5 are not limited to this.
  • FIG. 5 is a schematic perspective view for illustrating an operation section 5 a according to another embodiment.
  • a push button switch can also be adopted as the switch 3 c to depress the operation section 5 a.
  • the switch 3 c and the operation sections 5 and 5 a only have to be capable of switching the ON mode, the OFF mode, and the DOOR mode.
  • the cover 6 is provided on the frame 4 .
  • the cover 6 is provided to cover the edge section 4 a of the frame 4 and the opening of the frame 4 .
  • the cover 6 includes a cutout section 6 a (see FIG. 3 ).
  • the retaining section 4 b of the frame 4 is provided on the inside of the cutout section 6 a . Therefore, the retaining section 4 b of the frame 4 can be exposed from the cover 6 .
  • the cover 6 has a curved surface shape convex on the center side.
  • the shape of the cover 6 is not limited to the illustrated shape and can be changed as appropriate according to the use of the vehicle interior lighting device 1 , the design of the interior materials in the vehicle interior, and the like.
  • the cover 6 is provided to suppress glare. Therefore, the transmittance of light of the cover 6 is set low in order to reduce the intensity of incident light.
  • the transmittance of light is reduced by applying diffusion treatment such as blasting to at least one of an incident surface and an irradiation surface of the cover 6 or providing a scattering layer including a scattering material in at least one of the incident surface and the irradiation surface of the cover 6 .
  • diffusion treatment such as blasting to at least one of an incident surface and an irradiation surface of the cover 6 or providing a scattering layer including a scattering material in at least one of the incident surface and the irradiation surface of the cover 6 .
  • the transmittance of light can also be reduced by forming the cover 6 from a translucent material including the scattering material.
  • the scattering material can be, for example, a material obtained by adding, to the translucent material, particulates having a refractive index different from the refractive index of the translucent material.
  • the particulates can be, for example, particulates made of titanium oxide.
  • the linear transmittance of light in the cover 6 is set to 60% or lower, it is possible to effectively suppress glare.
  • the linear transmittance of light in the cover 6 is set to 30% or higher and 50% or lower, it is possible to more effectively suppress glare without spoiling the functions of the vehicle interior lighting device.
  • the control section 3 d is further explained.
  • the modes can be switched by operating the operation section 5 .
  • a passenger can distinguish the modes according to a state of the operation section 5 (e.g., a slide position of the operation section 5 ).
  • the state of the operation section 5 is invisible at night and the like.
  • an indicator consisting of a light-emitting diode or the like can also be provided in the vicinity of the operation section 5 .
  • control section 3 d that controls light-emitting states of the plurality of light-emitting elements 3 b is provided.
  • control section 3 d controls the light-emitting states of the plurality of light-emitting elements 3 b to set an amount of light in the DOOR mode to be more than an amount of light in the ON mode.
  • the control section 3 d can set the amount of light in the DOOR mode to be more than the amount of light in the ON mode by, for example, changing a current value applied to the plurality of light-emitting elements 3 b or changing the number of the light-emitting elements 3 b to be lit.
  • the control section 3 d can also control light-emitting states of the plurality of light-emitting elements 3 b to set an amount of light obtained when the doors of the vehicle are in the closed state in the DOOR mode to be equal to or less than a half, one fifth, one tenth, or one hundredth of an amount of light obtained when a door of the vehicle is in the open state.
  • the control section 3 d can also set the amount of light obtained when the doors of the vehicle are in the closed state in the DOOR mode to be equal to or less than a half, one fifth, one tenth, or one hundredth of the amount of light in the ON mode.
  • the vehicle interior lighting device 1 is in the DOOR mode if the vehicle interior lighting device 1 is slightly lit.
  • Purposes of lighting in the ON mode are improvement of comfortableness in the vehicle interior, improvement of visibility in hand work of the passenger, improvement of safety, and the like.
  • Purposes of lighting in the DOOR mode are improvement of visibility in getting on and off the vehicle, improvement of visibility from other vehicles, and the like.
  • control section 3 d sets the amount of light obtained when the doors of the vehicle are in the closed state to be equal to or less than a half, one fifth, one tenth, or one hundredth of an amount of light obtained when a door of the vehicle is in the open state.
  • the amount of light obtained when the doors of the vehicle are in the closed state is set to be equal to or less than a half and, preferably, equal to or less than one fifth of the amount of light obtained when a door of the vehicle is in the open state, it is possible to suppress the distinction for the DOOR mode from being deteriorated.
  • the amount of light obtained when the doors of the vehicle are in the closed state is preferably set to be equal to or less than one tenth and more preferable set to be equal to or less than one hundredth of the amount of light obtained when a door of the vehicle is in the open state.
  • the control section 3 d can also control the light-emitting states of the plurality of light-emitting elements 3 b to set a lighting pattern in the ON mode and a lighting pattern in the DOOR mode to be different from each other.
  • the control section 3 d can also control the light-emitting states of the plurality of light-emitting elements 3 b to set a light-emitting region in the ON mode and a light-emitting region in the DOOR mode to be different from each other.
  • FIGS. 6A and 6B are schematic views for illustrating the light-emitting region in the ON mode and the light-emitting region in the DOOR mode set different from each other.
  • the light-emitting region can be divided into a light-emitting region 16 a and a light-emitting region 16 b in the longitudinal direction of the cover 6 .
  • the DOOR mode it is possible to light the light-emitting elements 3 b in one of the light-emitting region 16 a and the light-emitting region 16 b.
  • the light-emitting region can be divided into a light-emitting region 16 c and a light-emitting region 16 d in the latitudinal direction of the cover 6 .
  • the control section 3 d can light the light-emitting elements 3 b corresponding to the light-emitting regions to set the light-emitting region in the ON mode and the light-emitting region in the DOOR mode to be different from each other.
  • the number of light-emitting regions is not limited to two. A plurality of light-emitting regions only have to be provided.
  • the number of the light-emitting regions it is possible to set the number of the light-emitting regions to the number same as the number of the doors of the vehicle and provide the light-emitting regions respectively corresponding to the plurality of doors.
  • the control section 3 d can also control light-emitting states of the plurality of light-emitting elements 3 b to cause the light-emitting elements 3 b to irradiate light on the entire vehicle interior in the ON mode and irradiate light at least on the vicinities of the doors of the vehicle and the vicinities of the seats in the DOOR mode.
  • the cover 6 can also be divided to match the light-emitting regions.
  • FIGS. 7A and 7B are also schematic views for illustrating the light-emitting region in the ON mode and the light-emitting region in the DOOR mode set different from each other.
  • FIG. 7B is a schematic sectional view in a B-B line direction in FIG. 7A .
  • the light-emitting region can be divided into a frame-like light-emitting region 16 e provided in a peripheral edge portion of the cover 6 and a planar light-emitting region 16 f provided in the center of the cover 6 .
  • the light-emitting elements 3 b in the lighting in the ON mode, it is possible to light the light-emitting elements 3 b only in the light-emitting region 16 e or in the light-emitting region 16 f and the light-emitting region 16 e .
  • the lighting in the DOOR mode it is possible to light the light-emitting elements 3 b only in the light-emitting region 16 e .
  • the lighting in the ON mode it is possible to light the light-emitting elements 3 b only in the light-emitting region 16 f .
  • the lighting in the DOOR mode it is possible to light the light-emitting elements 3 b only in the light-emitting region 16 e where the amount of light in the DOOR mode is adjusted to be higher than the amount of light in the ON mode or in the light-emitting region 16 f and the light-emitting region 16 e.
  • a light guide section 6 b extending to the inside of the housing 2 can be provided in the peripheral edge portion of the cover 6 .
  • the light guide section 6 b can be formed from a translucent material.
  • the transmittance of light of the light guide section 6 b (equivalent to an example of the second member) and the transmittance of light of a portion corresponding to the light-emitting region 16 e of the cover 6 (equivalent to an example of the second member) are different from the transmittance of light of a portion corresponding to the light-emitting region 16 f of the cover 6 (equivalent to an example of the first member).
  • the transmittance of light of the light guide section 6 b and the transmittance of light of the portion corresponding to the light-emitting region 16 e of the cover 6 can be set higher than the transmittance of light of the portion corresponding to the light-emitting region 16 f of the cover 6 .
  • An end section on a light incident side of the light guide section 6 b is provided right above the light-emitting element 3 b provided at the peripheral edge of the substrate 3 a .
  • the end section on the light incident side of the light guide section 6 b faces a part of the plurality of light-emitting elements 3 b.
  • a light amount in the light-emitting region 16 e can be increased. As a result, even when the width dimension of the frame-like light-emitting region 16 e is small, it is possible to increase visibility.
  • the light guide section 6 b , the portion corresponding to the light-emitting region 16 e of the cover 6 , and the portion corresponding to the light-emitting region 16 f of the cover 6 can be joined by a two-color molding method or fitting.
  • the light-emitting region is divided into the frame-like light-emitting region 16 e provided in the peripheral edge portion of the cover 6 and the planar light-emitting region 16 f provided in the center of the cover 6 .
  • light-emitting regions are not limited to this.
  • the number of light-emitting regions, the shapes of the light-emitting regions, the sizes of the light-emitting regions, and the like can be changed as appropriate according to the size, the design, the use, and the like of the vehicle interior lighting device 1 .
  • FIG. 8 is a schematic sectional view of the vehicle interior lighting device 1 according to still another embodiment.
  • FIG. 9 is a schematic exploded view of the vehicle interior lighting device 1 .
  • FIGS. 10A and 10B are schematic diagrams for illustrating disposing forms of light-emitting elements 3 b 1 and 3 b 2 .
  • the light-emitting section 3 includes the substrate 3 a , the light-emitting element 3 b 1 (equivalent to an example of the first light-emitting element), the light-emitting element 3 b 2 (equivalent to an example of the second light-emitting element), the switch 3 c , and the control section 3 d.
  • a part of lights irradiated from the light-emitting element 3 b 1 and the light-emitting element 3 b 2 is made incident on the side surface 2 d.
  • the light made incident on the side surface 2 d is reflected and irradiated to the outside of the vehicle interior lighting device 1 via the cover 6 .
  • Pluralities of the light-emitting elements 3 b 1 and 3 b 2 are provided on the substrate 3 a.
  • the light-emitting elements 3 b 1 and 3 b 2 can be, for example, light-emitting diodes or laser diodes.
  • the numbers of the light-emitting elements 3 b 1 and 3 b 2 are not particularly limited.
  • the numbers of the light-emitting elements 3 b 1 and 3 b 2 can be changed as appropriate according to the use, the size, and the like of the vehicle interior lighting device 1 . That is, the numbers of the light-emitting elements 3 b 1 and 3 b 2 only have to be two or more.
  • At least any one of a light-emitting color, chromaticity, and color temperature of lights irradiated from the light-emitting elements 3 b 1 can be set different from at least any one of a light-emitting color, chromaticity, and color temperature of lights irradiated from the light-emitting elements 3 b 2 .
  • the light-emitting colors, the chromaticities, and the color temperatures can be set different by changing semiconductor materials forming the light-emitting elements 3 b 1 and 3 b 2 or can be set different by changing phosphors provided on emission surfaces of the light-emitting elements 3 b 1 and 3 b 2 .
  • the arrangement of the pluralities of light-emitting elements 3 b 1 and 3 b 2 may be regular arrangement such as a matrix shape or a concentric circle shape or may be any arrangement.
  • the light-emitting elements 3 b 1 and the light-emitting elements 3 b 2 contiguous to each other as shown in FIG. 10A and alternately arrange the light-emitting elements 3 b 1 and the light-emitting elements 3 b 2 as shown in FIG. 10B .
  • the ON mode is a mode for lighting at least a part of the pluralities of light-emitting elements 3 b 1 and 3 b 2 .
  • An OFF mode is a mode for extinguishing the pluralities of light-emitting elements 3 b 1 and 3 b 2 .
  • the DOOR mode is a mode for lighting at least a part of the pluralities of light-emitting elements 3 b 1 and 3 b 2 when a door of a vehicle is in an open state and extinguishing the pluralities of the light-emitting elements 3 b 1 and 3 b 2 when doors of the vehicle are in a closed state.
  • a connection method for the light-emitting elements 3 b 1 and 3 b 2 and a not-shown wiring pattern provided on the surface of the substrate 3 a is not particularly limited.
  • the light-emitting elements 3 b 1 and 3 b 2 can be electrically connected to the not-shown wiring pattern via a wire.
  • the light-emitting elements 3 b 1 and 3 b 2 may be mounted by COB (Chip On Board) directly connected to the not-shown wiring pattern.
  • the light-emitting elements 3 b 1 and 3 b 2 can be directly provided on the substrate 3 a or can be provided on the substrate 3 a via an envelope like, for example, a PLCC (Plastic Leaded Chip Carrier) type.
  • PLCC Poly Leaded Chip Carrier
  • annular reflectors surrounding the light-emitting elements 3 b 1 and 3 b 2 can be provided, the light-emitting elements 3 b 1 and 3 b 2 can be sealed by resin, or phosphors can be included in the resin for sealing the light-emitting elements 3 b 1 and 3 b 2 .
  • the control section 3 d controls light-emitting states of the pluralities of the light-emitting elements 3 b 1 and 3 b 2 to set at least any one of a light-emitting color, chromaticity, and color temperature in the ON mode and at least any one of a light-emitting color, chromaticity, and color temperature in the DOOR mode to be different from each other.
  • the control section 3 d can also control the light-emitting states of the pluralities of light-emitting elements 3 b 1 and 3 b 2 to set a lighting pattern in the ON mode and the lighting pattern in the DOOR mode to be different from each other.
  • the control section 3 d can also control the light-emitting states of the pluralities of light-emitting elements 3 b 1 and 3 b 2 to set a light-emitting region in the ON mode and a light-emitting region in the DOOR mode to be different from each other.
  • the control section 3 d controls the light-emitting states of the pluralities of the light-emitting elements 3 b 1 and 3 b 2 to set at least any one of the light-emitting color, the chromaticity, and the color temperature in the ON mode and at least any one of the light-emitting color, the chromaticity, and the color temperature to be different from each other.
  • control section 3 d can set at least any one of the light-emitting color, the chromaticity, and the color temperature in the ON mode and at least any one of the light-emitting color, the chromaticity, and the color temperature to be different from each other by, for example, lighting any ones of the light-emitting elements 3 b 1 and the light-emitting elements 3 b 2 or changing the number and an amount of light of the light-emitting elements 3 b 1 to be lit and the number and an amount of light of the light-emitting elements 3 b 2 to be lit.
  • control section 3 d can change the amounts of light by changing current amounts applied to the light-emitting elements 3 b 1 and 3 b 2 .
  • Purposes of lighting in the ON mode are improvement of comfortableness in the vehicle interior, improvement of visibility in hand work of the passenger, improvement of safety, and the like.
  • Purposes of lighting in the DOOR mode are improvement of visibility in getting on and off the vehicle, improvement of visibility from other vehicles, and the like.
  • the control section 3 d can control the light-emitting states of the pluralities of light-emitting elements 3 b 1 and 3 b 2 to set a lighting pattern in the ON mode and a lighting pattern in the DOOR mode to be different from each other.
  • control section 3 d can also control the light-emitting states of the plurality of light-emitting elements 3 b 1 and 3 b 2 to set a light-emitting region in the ON mode and a light-emitting region in the DOOR mode to be different from each other.
  • the control section 3 d can light the light-emitting elements 3 b 1 and 3 b 2 corresponding to the light-emitting regions to set the light-emitting region in the ON mode and the light-emitting region in the DOOR mode to be different from each other.
  • the number of light-emitting regions is not limited to two. A plurality of light-emitting regions only have to be provided.
  • the number of the light-emitting regions it is possible to set the number of the light-emitting regions to the number same as the number of the doors of the vehicle and provide the light-emitting regions respectively corresponding to the plurality of doors.
  • the cover 6 can also be divided to match the light-emitting regions.
  • FIGS. 11A and 11B are schematic views for illustrating the light-emitting region in the ON mode and the light-emitting region in the DOOR mode set different from each other.
  • FIG. 8B is a schematic sectional view in a B-B line direction in FIG. 8A .
  • the light-emitting region can be divided into the frame-like light-emitting region 16 e provided in a peripheral edge portion of the cover 6 and the planar light-emitting region 16 f provided in the center of the cover 6 .
  • an end section on a light incident side of the light guide section 6 b is provided right above the light-emitting elements 3 b 1 and 3 b 2 provided at the peripheral edge of the substrate 3 a.
  • the end section on the light incident side of the light guide section 6 b faces a part of the pluralities of light-emitting elements 3 b 1 and 3 b 2 .
  • a light amount in the light-emitting region 16 e can be increased. As a result, even when the width dimension of the frame-like light-emitting region 16 e is small, it is possible to increase visibility.
  • the light guide section 6 b , the portion corresponding to the light-emitting region 16 e of the cover 6 , and the portion corresponding to the light-emitting region 16 f of the cover 6 can be joined by a two-color molding method or fitting.
  • FIGS. 12A and 12B are schematic diagrams for illustrating a light-emitting region in the ON mode and a light-emitting region in the DOOR mode set different from each other.
  • FIG. 12B is a schematic sectional view in a C-C line direction in FIG. 12A .
  • the light-emitting region can be divided into light-emitting regions 16 g provided at the four corners of the cover 6 and a planar light-emitting region 16 h provided mainly in the center of the cover 6 .
  • the light-emitting elements 3 b 1 and 3 b 2 it is possible to light the light-emitting elements 3 b 1 and 3 b 2 to only in the light-emitting region 16 h or in the light-emitting region 16 h and the light-emitting regions 16 g .
  • Optical elements 16 g 1 can be provided in the light-emitting regions 16 g .
  • the optical elements 16 g 1 can be, for example, convex lenses illustrated in FIG. 12B .
  • the optical elements 16 g 1 are not limited to the convex lenses and only have to be optical elements that can generate a desired light condensation characteristic (condense lights in a predetermined position) or generate a desired luminous intensity distribution characteristic (cause desired spread of light).
  • the optical elements 16 g 1 are the convex lenses, it is easy to condense lights in the vicinities of the doors of the vehicle and in the vicinities of seats.
  • the light-emitting regions 16 g are provided at the four corners of the cover 6 .
  • the light-emitting regions 16 g are not limited to this.
  • the number, the shape, the disposing positions, and the like of the light-emitting regions 16 g can be changed as appropriate according to the use of the vehicle interior lighting device, the design of interior materials in the vehicle interior, and the like.
  • the number of the light-emitting regions 16 g can be set the same as the number of the doors of the vehicle.
  • the light-emitting regions 16 g can be respectively provided for the plurality of doors.
  • the optical elements can be provided in at least one of the light-emitting region 16 h and the light-emitting regions 16 g.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
US14/609,943 2014-03-25 2015-01-30 Vehicle Interior Lighting Device Abandoned US20150274070A1 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2014062723A JP6252985B2 (ja) 2014-03-25 2014-03-25 車室内照明装置
JP2014-062723 2014-03-25
JP2014-062448 2014-03-25
JP2014062209A JP6252984B2 (ja) 2014-03-25 2014-03-25 車室内照明装置
JP2014062448A JP2015182678A (ja) 2014-03-25 2014-03-25 車室内照明装置
JP2014-062209 2014-03-25
JP2014-062722 2014-03-25
JP2014062722A JP2015182691A (ja) 2014-03-25 2014-03-25 車室内照明装置

Publications (1)

Publication Number Publication Date
US20150274070A1 true US20150274070A1 (en) 2015-10-01

Family

ID=52423631

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/609,943 Abandoned US20150274070A1 (en) 2014-03-25 2015-01-30 Vehicle Interior Lighting Device

Country Status (3)

Country Link
US (1) US20150274070A1 (zh)
EP (1) EP2923891A3 (zh)
CN (1) CN104949026A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180290589A1 (en) * 2017-04-05 2018-10-11 Volkswagen Aktiengesellschaft Interior light for a motor vehicle
US10399487B2 (en) 2016-02-24 2019-09-03 Valeo Vision Lighting system for motor vehicle passenger compartment
CN114340082A (zh) * 2021-12-20 2022-04-12 华人运通(江苏)技术有限公司 一种门饰板灯光系统、控制方法、存储介质及车辆

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9789823B2 (en) * 2015-11-03 2017-10-17 Ford Global Technologies Llc Illuminated tiered cargo area storage for vehicle
FR3047946B1 (fr) * 2016-02-24 2019-11-29 Valeo Vision Liseuse, notamment pour l'habitacle d'un vehicule automobile
CN105650570B (zh) * 2016-03-31 2018-02-06 常州星宇车灯股份有限公司 基于电容触摸开关的汽车室内灯
JP6526611B2 (ja) * 2016-10-07 2019-06-05 矢崎総業株式会社 車室内照明装置
CN110949249B (zh) * 2019-11-28 2021-10-26 中国第一汽车股份有限公司 一种汽车室内灯控制方法、调节方法及其控制系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050013139A1 (en) * 2001-11-28 2005-01-20 Toyoda Gosei Co., Ltd. Illumination device
US20050219853A1 (en) * 2004-03-31 2005-10-06 Honda Access Corp Interior illuminator for automobile
US20110121730A1 (en) * 2009-11-24 2011-05-26 Toyota Boshoku Kabushiki Kaisha Vehicle interior light

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3959917B2 (ja) * 1999-06-28 2007-08-15 豊田合成株式会社 車両用室内照明装置
JP4013562B2 (ja) * 2002-01-25 2007-11-28 豊田合成株式会社 照明装置
JP4706598B2 (ja) * 2006-08-24 2011-06-22 市光工業株式会社 車両用ルームランプ
JP4572895B2 (ja) * 2006-12-20 2010-11-04 市光工業株式会社 車両用ルームランプ
JP5017029B2 (ja) * 2007-09-12 2012-09-05 矢崎総業株式会社 車両用室内照明灯

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050013139A1 (en) * 2001-11-28 2005-01-20 Toyoda Gosei Co., Ltd. Illumination device
US20050219853A1 (en) * 2004-03-31 2005-10-06 Honda Access Corp Interior illuminator for automobile
US20110121730A1 (en) * 2009-11-24 2011-05-26 Toyota Boshoku Kabushiki Kaisha Vehicle interior light

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10399487B2 (en) 2016-02-24 2019-09-03 Valeo Vision Lighting system for motor vehicle passenger compartment
US20180290589A1 (en) * 2017-04-05 2018-10-11 Volkswagen Aktiengesellschaft Interior light for a motor vehicle
US10611300B2 (en) * 2017-04-05 2020-04-07 Volkswagen Aktiengesellschaft Vehicle interior light with lens integral to lightguide
CN114340082A (zh) * 2021-12-20 2022-04-12 华人运通(江苏)技术有限公司 一种门饰板灯光系统、控制方法、存储介质及车辆

Also Published As

Publication number Publication date
EP2923891A3 (en) 2015-11-04
CN104949026A (zh) 2015-09-30
EP2923891A2 (en) 2015-09-30

Similar Documents

Publication Publication Date Title
US20150274070A1 (en) Vehicle Interior Lighting Device
EP2458266B1 (en) Light emitting diode (LED) lamp
US20080130305A1 (en) LED Lights for Interior Automotive Lighting
US9057497B2 (en) LED module having a double diffuser
EP3425023B1 (en) White light emitting devices
CN102085827A (zh) 车辆用照明装置
US9409514B2 (en) Light device with frame provided for holding switch operating section
US20200063934A1 (en) Vehicle Lighting Device and Vehicle Lamp
CN105715972B (zh) 照明装置
JP5724183B2 (ja) 発光装置
US7661859B2 (en) Operation panel
US20080259623A1 (en) Light for the Passenger Compartment of a Motor Vehicle
US8403551B2 (en) Lighting device
CN103477708B (zh) 光源和光源带
US9821712B2 (en) Vehicle interior lighting device
US9512981B2 (en) Luminaire for interior lamp provided in automobile
JP6252984B2 (ja) 車室内照明装置
JP6252985B2 (ja) 車室内照明装置
JP6248369B2 (ja) 車室内用照明装置
JP2015182678A (ja) 車室内照明装置
JP2015182691A (ja) 車室内照明装置
KR20160043260A (ko) 조명부 거울 및 선바이저
KR20100009796A (ko) 자동차용 배니티미러 장치
JP6683944B2 (ja) 車室内操作スイッチ
JP6667139B2 (ja) 車室内照明装置

Legal Events

Date Code Title Description
AS Assignment

Owner name: TOSHIBA LIGHTING & TECHNOLOGY CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SHIRAISHI, HIROMITSU;NAGANO, MASAMITSU;TSUCHIYA, RYUJI;AND OTHERS;REEL/FRAME:034854/0134

Effective date: 20150120

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION